CN105182889A - Multifunctional environment simulation cabin - Google Patents
Multifunctional environment simulation cabin Download PDFInfo
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- CN105182889A CN105182889A CN201510480858.7A CN201510480858A CN105182889A CN 105182889 A CN105182889 A CN 105182889A CN 201510480858 A CN201510480858 A CN 201510480858A CN 105182889 A CN105182889 A CN 105182889A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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Abstract
The invention relates to environment simulation laboratory equipment, especially to a multifunctional environment simulation cabin comprising a cabin body, a PLC control system installed at the outer wall of the cabin body, an air circulation and purification sub system for air circulation and purification inside the cabin body, a new air conveying sub system for inputting new air into the cabin body, a target gas concentration control sub system, and a pressure-control exhaust system. The PLC control system is connected with and controls a plurality of function sub systems by signals, thereby realizing simulation of the environment with different temperatures and humidity and target gas concentrations inside the cabin. According to the invention, an external circulating air hose is provided with different purification device interfaces to installed tested purification devices, so that dynamic testing of tested purifiers on the circulating air hose as well as testing of static environments with different monitoring gas concentrations can be simulated. Testing demands of various purifying devices like an adsorption type purifying device, a photocatalysis type purifying device, or a plasma-technology-based purifying device can be satisfied.
Description
Technical field
The present invention relates to a kind of laboratory equipment; Particularly relate to a kind of environmental simulation laboratory equipment.
Background technology
Along with the raising of people's living standard and the day by day serious of environmental pollution, people grow with each passing day to the demand eliminating the air clearing product of multiple environmental pollution; The clean-up effect of air clearing product how, usually needs to carry out testing authentication in different contaminated environment.
The multifunctional environment simulation cabin overwhelming majority of prior art is the small-size multifunction environmental capsule of volume about a cubic metre, these small-size multifunction environmental capsules are used for greatly release rule, the function singleness of measuring cell interior finish material and interior products gas-monitoring, can be used for the very few of air clearing product detection.
Clearly propose to detect air purifier in standard GB/T/T18801-2008 " air purifier " to need to use volume to be the environmental capsule of 30 cubic metres, and require that bulkhead uses float flat glass, bottom uses corrosion resistant plate, top uses composite metal plate, but this cabin inwall large area uses glass, glass is still very large to the absorption of some monitored object gas, such adsorption effect can make the test result of air purifier produce deviation, therefore, the multifunctional environment simulation cabin being badly in need of development of new meets detection and scientific research needs.
Summary of the invention
The technical problem to be solved in the present invention is to avoid the environmental capsule function singleness of above-mentioned prior art and carries out the air purifier test weak point large with actual conditions deviation and propose a kind of multifunctional environment simulation cabin, closed environment not only can be simulated in this multifunctional environment simulation cabin, the indoor environment that contaminated degree is different can also be simulated, and can simulate the dynamic environment simulation cabin of controlled new wind ratio, be a kind of important experiment porch detecting and study air clearing product performance.
The technical scheme that the present invention solve the technical problem employing is: a kind of multifunctional environment simulation cabin, comprise for the formation of autonomous closure space cabin body, be loaded on the PLC control system of the external wall in cabin and the air circularly purifying subsystem for air circularly purifying in the body of cabin; Described air circularly purifying subsystem, comprise be installed on cabin external body for recirculating air flowing recirculating air pipeline, be installed on the external wall in cabin for providing the recirculating air blower fan of recirculating air power and being arranged at the recirculating air return air inlet for recirculating air being sent into cabin body on the body of cabin; Described recirculating air blower fan one end is connected with recirculating air pipeline, and the other end is connected with the opening on the external wall in cabin; The recirculating air flow that recirculating air blower fan is extracted out in the body of cabin, through recirculating air pipeline, is got back in the body of cabin from recirculating air return air inlet; The nearly recirculating air fan end of described recirculating air pipeline, comprises the first purification plant installing port for installing the first purification plant.
Described multifunctional environment simulation cabin, comprises the new wind input subsystem for inputting new wind in the body of cabin; Described new wind input subsystem, the new wind blower fan comprising the external fresh air pipeline in the cabin for new wind flow being arranged on cabin external body and provide for new wind circulation power; Described new wind input subsystem is connected by the new wind input port on described recirculating air pipeline with described air circularly purifying subsystem; During new wind fan starting work, the new wind input port of new wind on recirculating air pipeline enters recirculating air pipeline.
Described multifunctional environment simulation cabin, described first purification plant installing port is positioned at the nearly recirculating air fan end of recirculating air pipeline; Described new wind input port is between the first purification plant installing port and recirculating air return air inlet.
The nearly recirculating air return air inlet end of described recirculating air pipeline, comprises the second purification plant installing port for installing the second purification plant; Described new wind input port is between the second purification plant installing port and the first purification plant installing port.
Described recirculating air pipeline has the gas filler being filled into recirculating air pipeline for gas-monitoring between the second purification plant installing port and recirculating air return air inlet.
Described multifunctional environment simulation cabin, comprises the target gas levels control subsystem controlled for gas-monitoring concentration; Described target gas levels control subsystem, comprises target gas levels bulk concentration detecting sensor; Described target gas levels bulk concentration detecting sensor comprises concentration of formaldehyde detecting sensor, VOC concentration detection sensor, ozone concentration detecting sensor, ammonia density detecting sensor and hydrocarbon concentration detection sensor; Described target gas levels bulk concentration detecting sensor sends gas-monitoring concentration data to PLC control system; PLC control system is carried out common goal of regulation and control gas concentration according to the gas flow that target gas levels Data Control recirculating air rotation speed of fan and gas filler inject and is reached desired value.
It is inner that described target gas levels bulk concentration detecting sensor is installed on cabin body, the target gas levels of direct survey room body inside.
Described object gas thief hatch can pass through outside sampling apparatus by the gas in the body of cabin through sampling pipe suction, and it is inner that the gas after detection returns to cabin body through sampling muffler again; Described sampling pipe and sampling muffler are penetrate the external wall in cabin; Any position in the body of cabin can be expanded and extend to the part of described sampling pipe in the body of cabin.
Described multifunctional environment simulation cabin, comprise Temperature and Humidity Control subsystem, comprise the temperature sensor measured for air themperature in cabin, the electric heater of heating for air in cabin, for the refrigerator of air cooling in cabin, the humidity sensor measured for air humidity in cabin, the humidifier regulated for air humidity in cabin and the humiture blower fan for pumping temperature and humidity regulation air-flow; In described Temperature and Humidity Control subsystem, it is inner that described temperature sensor and described humidity sensor are arranged on described cabin body; Described electric heater, refrigerator, humidifier, humiture assembling, in the outside of described cabin body, do not take body inner space, cabin; Described temperature sensor and described humidity sensor send temperature and humidity measurement data to PLC control system; PLC control system, according to the humiture data received, controls described electric heater or refrigerator or humidifier and heats body inside, cabin or freeze or humidification.
Described multifunctional environment simulation cabin comprises the Stress control exhaust sub-system for the protection of cabin body air pressure; Described Stress control exhaust sub-system, comprise for the exhaust duct to the external air draft in cabin, the exhaust fan provided for air draft power, for pressure detection in the body of cabin pressure transducer and be arranged on the pressure relief safety valve at body top, cabin; Described exhaust duct is positioned at the outside of cabin body; Described exhaust duct is connected with the exhaust outlet of the nearly bottom end of cabin body sidewall; It is inner that described pressure transducer is arranged on cabin body; Described pressure transducer sends pressure measurement data to PLC control system; PLC control system controls exhaust fan rotating speed according to the pressure measurement data received; Described pressure relief safety valve automatically carries out pressure detection and judges that pressure exceeds setting threshold value and then opens pressure relief safety valve; Described cabin body is square, and cabin body is spliced by polyurethane plate, and cabin inwall employing material is the polishing stainless steel plate of 304; Described cabin body comprises the hatch door of DC36V except frost line is housed, between described hatch door and described cabin body, adopt polytetrafluoroethylene gasket to seal; Described hatch door is also provided with multi-layer vacuum glass view window.
Compared with the existing technology comparatively, the invention has the beneficial effects as follows: 1. air purifier is mounted in the wind pipe of air-conditioning system usually, multifunctional environment simulation cabin of the present invention is by the pattern of the external circulation airduct of employing of innovation, well simulate the actual installation environment of tested air purifier, such vibrational power flow, air purifier is made can be independently arranged in the controlled recirculating air pipeline of flow, and the ducted object gas of recirculating air namely the gas concentration that purifies by air purifier can regulate in real time according to test needs, better simulate the fluctuation situation of gas-monitoring in actual application environment, 2. on the external airduct in multifunctional environment simulation cabin of the present invention, the air purifier of different model, can be transferred by the flange-interface supporting with this air purifier and be arranged on circulation airduct, or can directly be connected with dissimilar interface, facilitate the test of air purifier, 3. recirculating air flow, newly wind flow, the humiture wind flow in multifunctional environment simulation cabin of the present invention, and the object gas actual amount of filling on recirculating air pipeline, fresh air proportion, all accept the control of PLC, according to different test requests, different basic environment parameters can be set with real-time dynamic environmental parameter to meet different testing requirements, 4. the inner space in multifunctional environment simulation cabin of the present invention is large, not only can carry out the test of air purifier in recirculating air pipeline, also can carry out clarifier test therein and other have the test of other equipment of requirement and product to environmental gas concentration.5. multifunctional environment simulation cabin of the present invention can meet the testing requirement of Static-state Space, can meet again the dynamic test demand with new wind ratio.
Accompanying drawing explanation
Fig. 1 is the perspective view of one of multifunctional environment simulation cabin of the present invention embodiment;
Fig. 2 is the functions of modules schematic diagram that the PLC control subsystem of one of multifunctional environment simulation cabin of the present invention embodiment is relevant;
Fig. 3 is that the part of one of multifunctional environment simulation cabin of the present invention embodiment forms schematic diagram;
Fig. 4 is the control procedure schematic diagram that the PLC control subsystem of one of multifunctional environment simulation cabin of the present invention embodiment is relevant;
Fig. 5 is the recirculating air control procedure schematic diagram of one of multifunctional environment simulation cabin of the present invention embodiment;
Fig. 6 is the control procedure schematic diagram under the quiescent operation state of multifunctional environment simulation cabin of the present invention;
Fig. 7 is the control procedure schematic diagram under the dynamic behavior of multifunctional environment simulation cabin of the present invention.
Embodiment
Be further described below in conjunction with the content of each accompanying drawing to various embodiments of the present invention.
See shown in Fig. 1 to 3, in a kind of first embodiment of multifunctional environment simulation cabin, comprise for the formation of separate space cabin body 10, be loaded on cabin body 10 outer wall PLC control system 20, in the body of cabin air circulation and purification air circularly purifying subsystem 60 and in the body of cabin aerial temperature and humidity regulate Temperature and Humidity Control subsystem 50.
Described PLC control system 20 connects and sends control signals to described air circularly purifying subsystem 60 and Temperature and Humidity Control subsystem 50.
Described air circularly purifying subsystem 60, comprise be installed on cabin body 10 outside the recirculating air pipeline 61 for recirculating air flowing, be installed on the nearly bottom of cabin body 10 outer wall for provide the recirculating air blower fan 62 of recirculating air power, for batching cycle wind flow size recirculating air flow gauge 64 and be arranged at the recirculating air return air inlet 65 for recirculating air being sent into cabin body 10 at cabin body 10 top.
Described recirculating air pipeline 61 connects recirculating air blower fan 62, recirculating air flow gauge 64 and recirculating air return air inlet 65 successively, provides the free air space of recirculating air; Described recirculating air blower fan 62 one end is connected with recirculating air pipeline 61, and the other end is connected with the opening on cabin body 10 outer wall.
Recirculating air flows through the recirculating air pipeline 61 that recirculating air flow gauge 64 is housed and gets back to recirculating air return air inlet 65 after extracting cabin body 10 out by recirculating air blower fan 62.
Described recirculating air flow gauge 64 sends recirculating air data on flows to PLC control system 20, and described recirculating air blower fan 62 receives the control signal that PLC control system 20 is sent, and according to this control signal controlled circulation wind blower fan 62 rotating speed.
Nearly recirculating air blower fan 62 end of described recirculating air pipeline 61, comprises the first purification plant installing port 66 for installing the first purification plant 86.This first purification plant 86 purifies air at nearly recirculating air blower fan 62 end of recirculating air loop.
So far, above-mentioned first embodiment can realize a multifunctional environment simulation cabin being realized by the continuous circulation of the recirculating air blower fan 62 in air circularly purifying subsystem 60 testing for air purifier.
The blower fan related in described recirculating air blower fan 62 and the present invention can be all frequency conversion fan also can be other forms of blower fan, as long as can provide power.
On the basis of above-mentioned first embodiment, described air circularly purifying subsystem 60 also comprises the new wind input port 63 between recirculating air flow gauge 64 and recirculating air return air inlet 65 in a second embodiment.New wind input port 63 is connected with the new wind input subsystem 30 for inputting new wind in the body of cabin.Described new wind input subsystem 30, the new wind blower fan 32 comprise the external fresh air pipeline 33 in the cabin for new wind flow being installed on cabin body 10 outside, providing for new wind circulation power, for measuring the new distinguished and admirable gauge 34 of new general mood stream size, the new wind filtration unit 31 filtered for new wind and for the current-controlled new wind stop valve 35 of new wind.
The fresh air pipeline 33 of new wind input subsystem 30 is connected with the new wind input port 63 on described air circularly purifying subsystem 60.Described new wind filtration unit 31, new wind blower fan 32, new distinguished and admirable gauge 34 and new wind stop valve 35 are connected in turn on fresh air pipeline 33.
When new wind blower fan 32 starts work, first new wind enter the new wind input port 63 that new wind filtration unit 31 enters on recirculating air pipeline 61 through new wind blower fan 32, new distinguished and admirable gauge 34, new wind stop valve 35 again and enter recirculating air pipeline 61.Described new distinguished and admirable gauge 34 sends new wind flow data to PLC control system 20.New wind blower fan 32 receives the control signal that PLC control system 20 is sent, and controls new wind blower fan 32 rotating speed according to this control signal.
So far, above-mentioned second embodiment can realize one by air circularly purifying subsystem 60 and new wind input subsystem 30 composition jointly, can input the multifunctional environment simulation cabin that new wind and cabin body-internal-circulation realize for air purifier test simultaneously.
New wind filter in above-mentioned new wind filtration unit 31, namely just effect and medium effeciency filter all adopt drawer-type structure, can carry out demolition and replacement when user detects filter failure.
On the basis of the above-mentioned first or second embodiment, can increase recirculating air stop valve 67 in described air circularly purifying subsystem 60 and form the 3rd embodiment, namely described air circularly purifying subsystem 60 also comprises recirculating air stop valve 67 in the third embodiment.It is outside that described recirculating air stop valve 67 is installed on cabin body 10, one end that nearly recirculating air blower fan 62 is connected with recirculating air pipeline 61.Recirculating air stop valve 67 receives the control signal that PLC control system 20 is sent, according to this control signal switch cycles wind stop valve 67.
On the basis of above-mentioned 3rd embodiment, at nearly recirculating air return air inlet 65 end of described recirculating air pipeline 61, the second purification plant installing port 68 arranged for installing the second purification plant 88 forms the 4th embodiment.This first purification plant 86 purifies air at nearly recirculating air return air inlet 65 end of recirculating air loop.
On the basis of above-mentioned 4th embodiment, described new wind input port 63 is placed between the first purification plant installing port 66 and recirculating air return air inlet 65, forms the 5th embodiment.Described new wind input port 63 is placed between the second purification plant installing port 68 and recirculating air flow gauge 64, forms the 6th embodiment.In the sixth embodiment, new wind is also evolved with the second purification plant 88, makes new wind and recirculating air can be purified the evolution of device, more easily obtains the controlled environment of gas-monitoring concentration.
In the sixth embodiment, the first purification plant 86 and the first purification plant installing port 66 are installed on recirculating air pipeline section, the change of gas-monitoring concentration in cabin during for observing decontamination cycle wind; Second purification plant 88 and the second purification plant installing port 68 are installed on recirculating air and the mixed duct section of new wind, the situation of change of the gas-monitoring degree of depth in cabin during for observing purification mixing wind.First purification plant installing port 66 and the second purification plant installing port 68 can use Flange joint mouth, also can also be the interfaces that other forms can install purification plant.
On the basis of above-mentioned 5th embodiment, between the second purification plant installing port 68 and recirculating air return air inlet 65 of described recirculating air pipeline 61, gas filler 69 is housed and forms the 7th embodiment; Described gas filler can be connected with gas filling apparatus, for quantitative filling steam state and liquid object gas.
When testing air purifier, before needing test, in multifunctional environment simulation cabin, producing certain density object gas, then open clarifier, testing its purification efficiency.Object gas filling apparatus adopts liquid flowmeter to be filled in cabin by Thermal desorption.
Adopt PLC to control liquid flowmeter and by solution analyzer, liquid is resolved to gas and be filled in cabin by interface.Or PLC is controlled gas meter and produces certain density object gas and be filled in cabin by interface.Adopt online pyrolysis analyzer to produce rapidly certain density object gas, deliver to again in cabin according to the filler that the requirement of different pollution source generating meanss adopts tracheae and nitrogen to be delivered on airduct by pressure regulator valve, solenoid valve.
Particular location circulation airduct being reserved with the gas collecting mouth 81 of gas filler 69, two purification plant installing ports 66,68 and target gas levels bulk concentration detecting sensor 95 can at the diverse location of cabin body, or in other positions of circulation airduct.
On the basis of above-mentioned 7th embodiment, increase the target gas levels control subsystem 90 being used for the control of gas-monitoring concentration and form the 8th embodiment.Described target gas levels control subsystem 90, comprises target gas levels bulk concentration detecting sensor 95.Described target gas levels bulk concentration detecting sensor 95 includes but not limited to concentration of formaldehyde detecting sensor, VOC concentration detection sensor and ozone concentration detecting sensor, ammonia density detecting sensor, hydrocarbon concentration detection sensor.Described target gas levels bulk concentration detecting sensor 95 sends gas-monitoring concentration data to PLC control system 20.Described recirculating air blower fan 62 receives the control signal that PLC control system 20 is sent, and the gas-monitoring amount injected according to this control signal controlled circulation wind blower fan 62 rotating speed and gas filler 69 and fresh air proportion regulate and control gas-monitoring concentration jointly reaches desired value, realize the dynamic environment state simulation with new wind ratio.
It is inner that target gas levels bulk concentration detecting sensor 95 described in 8th embodiment is installed on cabin body 10, the target gas levels of direct survey room body 10 inside.
Described gas-monitoring concentration sample mouth 81 is installed on cabin body 10 outside becomes the 9th embodiment.By the sampling apparatus of outside, the gas in cabin body 10 is carried out Concentration Testing through sampling arrangement samples target approach gas concentration bulk concentration detecting sensor 95, it is inner that the gas after detection returns to cabin body 10 through sampling muffler again.Described sampling pipe and sampling muffler are penetrate cabin body 10 outer wall; Any position in cabin body 10 can be expanded and extend to the part of described sampling pipe in cabin body 10.
Gas concentration measurement in cabin the body 10 and gas sampling carried out utilizes four pipe dual channel modes, sampling pipe and sampling muffler material are stainless steel, avoid absorption.Avoid due to the gas pressure change in cabin body 10 simultaneously and produce negative pressure, the multifunctional environment simulation cabin body caused leaks, sampling muffler is got back to completing the conveying of the sample gas after measurement in cabin body 10, guarantees that cabin internal gas pressure can not be subject to the impact of this measurement, realizes automatic pressure-balancing.The sleeve pipe that a series of length does not wait can be nested on sampling pipe, gathers the concentration of diverse location in multifunctional environment simulation cabin, increases the reliability of data acquisition.
Sample on-line sampling gathering-device can connect Constant flow sample device by stainless-steel tube and sample, in addition also can by the concentration of gas-monitoring in portable instrumentation Real-Time Monitoring multifunctional environment simulation cabin.The transmission of signal wire adopts aviation plug with sealing.
Target gas levels bulk concentration detecting sensor 95 in some embodiments, comprises formaldehyde and each two of benzene sensor.Formaldehyde, VOC, ozone concentration on-line checkingi all adopts high-precision sensor.Target gas levels bulk concentration detecting sensor 95 can be placed on the support of the sensor in multifunctional environment simulation cabin; Support can at cabin indoor moving and height adjustable, and support also adopts SUS304 steel to do.
On the basis of above-mentioned one to nine embodiment, Temperature and Humidity Control subsystem 50 can be increased and form multiple embodiment; In these embodiments described Temperature and Humidity Control subsystem 50 comprise the temperature sensor 51 measured for air themperature in cabin, the electric heater 52 of heating for air in cabin, for the refrigerator 53 of air cooling in cabin, the humidity sensor 54 measured for air humidity in cabin, the humidifier 55 regulated for air humidity in cabin, humiture blower fan 56 for pumping temperature and humidity regulation air-flow.In addition Temperature and Humidity Control subsystem 50 can also comprise the distinguished and admirable gauge 57 of humiture for measuring temperature and humidity regulation air-flow size.
Described humidifier 55 adopts external boilers heated electrically mode to air wetting in cabin body 10.In described Temperature and Humidity Control subsystem 50, it is inner that described temperature sensor 51 and described humidity sensor 54 are arranged on described cabin body 10, and described electric heater 52, refrigerator 53, humidifier 55, humiture wind frequency conversion fan 56 are arranged on the outside of described cabin body 10.
Described temperature sensor 51 sends temperature measuring data to PLC control system 20.Described electric heater 52 or refrigerator 53 receive the control signal that PLC control system 20 is sent, and control heat cabin body 10 inside or freeze according to this control signal.Described humidity sensor 54 sends moisture measurement data to PLC control system 20.Described humidifier 55 receives the control signal that PLC control system 20 is sent, and controls to carry out humidification to cabin body 10 inside according to this control signal.The distinguished and admirable gauge 57 of described humiture can send temperature and humidity measurement data to PLC control system 20.Described humiture wind frequency conversion fan 56 receives the control signal that PLC control system 20 is sent, and controls humiture wind frequency conversion fan 56 rotating speed according to this control signal.
In certain embodiments, the specifications parameter that its environmental simulation reaches is as follows in multifunctional environment simulation cabin: temperature range-10 DEG C ~+60 DEG C, no load temperature uniformity coefficient≤3 DEG C, temperature fluctuation≤± 0.5 DEG C, Temperature displaying precision are 0.1 DEG C; RH range 40 ~ 95%RH (having condensation), hygroscopic humidity display precision are 0.1%RH.
Described electric heater 52 is made for stainless steel heating tube, and heating process is without any air release; This well heater also adopt solid-state relay carry out contactless zero trigger type of drive carry out electrical heating, contactless spark and noise, long service life.
Described refrigerator 53 adopts mechanical type vapor compression refrigeration to realize cooling; PWM operation valve refrigeration also adopting Sporlan company of the U.S. customize model realizes low-temperature energy-saving operation to realize the cold control technology of novel PWM.Low-temperature working state, well heater does not participate in work, by PWM technical control and regulation refrigeration unit refrigerant flow and the flow direction, to refrigeration piping, cold by-pass line, hot by-pass line three-dimensional flow regulation, realizes the automatic constant to operating room's temperature.This mode at low temperatures, can realize reducing part energy consumption.
Refrigeration pipe adopts high-quality oxygen-free copper pipe to carry out gas shielded welding, and circuit design is rationally convenient to safeguard, after pipeline welding, surface is carried out armor coated, avoids Long-Time Service pipeline oxidizing blackening.Installation refrigeration unit wall box installs acoustical foam board, and refrigeration unit also adopts vibroshock and rubber cushion to carry out damping and noise reduction.
For preventing the water on compressor after defrost from trickling arbitrarily, compressor bottom is provided with drip tray, and concentrate discharge after collecting, multifunctional environment simulation cabin inner evaporator condensate water has heating system.
For guaranteeing that humiture balanced system does not take the multifunctional environment simulation cabin useful space, adopting embedded design, only having heating, humidification in cabin, refrigeration, fan part, all the other trade union college at multifunctional environment simulation out of my cabin.
Damping device adopts external boilers heated electrically mode, and due to adjusted good humiture before feeding operating room, and operating room's temperature keeps the humiture same with new wind facies, comprises the temperature that whole sidewall also keeps required, so can not there is the condensation on sidewall.
Directly adopt tap water supply with the water supply installation that damping device is supporting, need not user constantly add water.And inside, multifunctional environment simulation cabin is installed water purification machine and carried out water source filtration and softening to tap water, meet the requirement of national humidification water resistance≤500 Ω .m with the water quality guaranteeing after treatment.The pure water filtered after softening automatically is sent into humidity system and is used, and humidifier devices sidewall condensate water directly carries out discharging not reclaiming.
On the basis of above-mentioned one to nine embodiment, increase the Stress control exhaust sub-system 70 being used for cabin body air pressure protection and form multiple embodiment.Described Stress control exhaust sub-system 70 in these embodiments, comprise for the exhaust duct 73 to the external air draft in cabin, the air draft stop valve 75 for exhaust duct switch control rule, for measure the discharge air flow gauge 74 of air draft air-flow size, the exhaust fan 72 provided for air draft power, for pressure detection in the body of cabin pressure transducer 76 and be arranged on the pressure relief safety valve 78 at cabin body 10 top.
Described exhaust duct 73 is positioned at the outside of cabin body 10; Described exhaust duct 73 is connected with the exhaust outlet of cabin body 10 side-wall near-bottom end; Described air draft stop valve 75, discharge air flow gauge 74 and exhaust fan 72 are arranged on the exhaust duct 73 after cabin body 10 exhaust outlet successively.
It is inner that described pressure transducer 76 is arranged on cabin body.Described pressure transducer 76 sends pressure measurement data to PLC control system 20.Described exhaust fan 72 receives the control signal that PLC control system 20 is sent, and controls exhaust fan 72 rotating speed according to this control signal.Described pressure relief safety valve 78 automatically carries out pressure detection and judges that pressure exceeds setting threshold value and then opens pressure relief safety valve 78.
The exhaust way that above-mentioned multifunctional environment simulation cabin body adopts is bottom air draft, and multifunctional environment simulation cabin body is provided with pressure balance mouth, and namely pressure relief safety valve 78 carries out automatic pressure-balancing.
The active carbon filter process air draft with compound action and the gas-monitoring concentration reducing Exhaust Gas after blowdown is also used at the end of gas exhaust duct.
On the basis of above-mentioned one to nine embodiment, described cabin body 10 increases different technical characteristics and becomes multiple corresponding embodiment, described cabin body 10 is square also can be other shapes, and cabin body is spliced by polyurethane plate, and cabin inwall employing material is the polishing stainless steel plate of 304.
In one embodiment, described cabin body 10 also comprises and DC36V is housed except the hatch door 12 of frost line, adopts polytetrafluoroethylene gasket to seal between described hatch door 12 and described cabin body 10.Described hatch door 12 is also provided with multi-layer vacuum glass view window 13.
Cabin body is spliced by polyurethane plate, the mirror face stainless steel plate body that the adsorbability that cabin inner-wall material is SUS304, thickness is 1.0mm is little.The special sealant sealing that corrosion resistant plate junction adsorbability is little; The joint of the inner corrosion resistant plate in multifunctional environment simulation cabin adopts snap close to add environmental protection type sealing adhesive sealing, guarantees non-volatile without absorption, ensures in cabin and air exchange do not occur between air out of my cabin.Cabin body 10 background concentration acceptance index is: formaldehyde :≤10 μ g/m3.
The heat-insulation layer of cabin body 10 adopts the flame retardant polyurethane foaming of the thick anti-second time of foaming of 100mm.The ground of whole cabin body 10 reaches>=500Kg/m
2.Upper and lower two pieces of the casing of cabin body 10 connects the dismountable screw connection of employing, guarantees that user can carry out secondary dismounting and assembling.
Hatch door and cabin body seal the polytetrafluoroethylene gasket and fluid sealant that adopt low release, prevent harmful gas from volatilizing in operating room.Concrete employing HBC1079 food-grade fluid sealant; Sealing glue is by European Union ROHS environmental protection standard, European Union REACH the Principles of Chemistry standard and U.S. FDA food hygiene grade standard.Hatch door 12 is also equipped with hinge and can guarantees opening angle >=120 degree, gate.
In addition, multifunctional environment simulation cabin can also be provided with protection against the tide, the explosion-proof lighting lamp of different capacity.Multifunctional environment simulation cabin also needs reserved anticorrosion unexplosive convenience receptacle, the supply socket of inner anti-explosion, anti-corrosion 2, and forceful electric power, light current are separated, 20-30cm place bottom the plate of forceful electric power distance multifunctional environment simulation cabin.Multifunctional environment simulation cabin also needs to install the table of mechanical compression on the spot being independently with warning device.
The ventilation volume in multifunctional environment simulation cabin is 1 to 50 time/hour; Equipment total installation of generating capacity 35 kilowatts; Real-world operation power is relevant with environment temperature and ventilation volume.In the test of an embodiment, multifunctional environment simulation cabin at the preparatory stage running power about 25 kilowatts of experimental enviroment, the constant rear running power of environment about 15 kilowatts; Empty stage running power about 5 kilowatts.
Self service condition of multifunctional environment simulation cabin: environment temperature :-10 DEG C ~+40 DEG C; Relative humidity: 20% ~ 90%RH; Surrounding air background concentration: formaldehyde is less than 0.06 μ g/m
3; High concentrate dust, corrosive gas and the inflammable and explosive atmosphere of around not having exists.Input power: AC380V ± 10%50Hz ± 5%, three-phase five-wire mode, meets equipment installed capacity requirement.
Multifunctional environment simulation cabin can also be provided with power phase shortage, misphase, spread of voltage protective device; Well heater short-circuit protection, earth leakage protection, humidifier water-shortage protection device; Overheat of compressor, overload, overvoltage, under-voltage protection and work chamber temperature overtemperature protection device.
See Fig. 4, in one embodiment of the present of invention, described PLC control system 20 comprises a PLC, i.e. programmable logic controller (PLC) ProgrammableLogicController, be called for short PLC, PLC essence is a kind of computing machine being exclusively used in Industry Control, and its hardware configuration is substantially identical with microcomputer, comprises the CPU (central processing unit) of the control axis as PLC, data memory module, input/output module, power module, functional module and communication module.
PLC adopts RS232 connection to be connected with touch-screen, and various optimum configurations is integrated in the touch screen display of PLC industrial computer; Realize the man-machine dialog interface of field control with touch-screen simultaneously.PLC control software design is independent research, and remote computer control configuration software carries out PLC by RS485 communication port and is connected with the network of host computer PC.
PLC is connected with the network of host computer PC and adopts TCP/IP to connect, and uses the communication of MODBUS agreement, and host computer PC mainly carries out control, the data display of PLC and stores.The control software design that host computer PC runs, comprise boiler-plate industrial computer real time OS, bus communication device, to be connected the collection and control of carrying out various signal with PLC by Ethernet, host computer PC and remote computer and local PLC all can be carried out monitoring in real time to boiler-plate and control.
The input signal of described PLC comprises: the temperature data signal of temperature sensor and thermal module input, the humidity data signal of humidity sensor and the input of humidity module, the pressure data signal of pressure transducer and modular pressure input, the content of formaldehyde data-signal of content of formaldehyde sensor and the input of content of formaldehyde module, the VOC data-signal of VOC sensor and the input of VOC module, the ozone data-signal of ozone sensor and ozone module input, other data-signals of the air quantity data-signal of air flow sensor and the input of air quantity module and other sensors and the input of other modules.Above-mentioned air flow sensor and air quantity module comprise: recirculating air flow quantity sensor and new air flow sensor and corresponding air quantity module thereof.Other sensors comprise the object gas survey sensor that other needs are measured, as dust granules survey sensor, carbon dioxide concentration measurement sensor or oxynitride concentration survey sensor.
In one embodiment, described PLC control system 20 adopts the exterior color coordinated mutually with multifunctional environment simulation cabin.The installation of electrical equipment and circuit lay the requirement meeting National Electrical installation specification, the bonding of analog signal line and avoid the mutual interference of strong and weak electricity, the accuracy controlled with the stability and flow rate test of guaranteeing control system.An air switch is set in control box as this project electricity consumption master switch.PLC is carried out network by RS485 communication port with touch-screen and host computer and is connected.Communication distance is far away, antijamming capability is strong.
PLC is used for equipment state management, equipment initial setting up, the real-time display of initial parameter; PLC is configured with touch-screen to carry out man-machine conversation mode.Man-machine interface is my company's independent development, adopts complete Chinese formula menu operation mode, makes user be easy to the operation of grasp equipment.
On the touch-screen of PLC, displaying contents comprises: all devices state; Concentration, purification rear concentration, 4 road gaseous state gas-monitoring flows, 4 road liquid monitoring gas flows in temperature, humidity, return air amount, fresh air proportion, resh air requirement, total blast volume, pressure, multifunctional environment simulation cabin.The content that the touch-screen of PLC can be arranged comprises: the pid control parameter coefficient value of temperature, humidity, return air amount, fresh air proportion and new wind blower fan, return air fan and exhaust fan.
PLC needs the parameter gathering all the sensors, and list shows the parameter of each sensor, and on each sensing station of apparatus and process form process flow diagram, display collects parameter and unit.
PLC needs to gather all devices device state, carries out equipment failure self diagnosis; Display device start and stop state and the failure message that can collect on apparatus and process form process flow diagram.
PLC needs the PID carrying out three Fans to control; PID coefficient can be arranged on interface; The PID of object gas loading system controls.PLC, when requiring liquids and gases to annotate, can synchro control fluid flow control and the matching problem of gas flow control.
PLC can adopt the constant or pre-set programs of humiture automatically to run two kinds of test methods to realize the control in multifunctional environment simulation cabin.
User need only Offered target humiture or default equipment working procedure, after startup optimization button, whether system can open refrigeration unit, humidifier, well heater or fan blower by automatic decision, simultaneously automatic heating, refrigeration outputs and humidity to be regulated, user need not cross multioperation or monitoring, desirable process of the test curve can be obtained.
Pre-set programs operation function provides user to pre-set program curve, and program curve can store, and can directly call during test next time.Current goal humiture, measurement humiture, important references parameter such as ventilation flow, air sampling flow etc. can be shown in real time in process of the test.Above-mentioned test parameters can export with CF card record.
Fault self-diagnosis function.Automatic alarm when equipment breaks down also is cut off the electricity supply, and the phenomenon of the failure simultaneously shown on the controller and simple fault illustrate, user can easily according to troubleshooting reason.
PLC also needs to possess defencive function: power phase shortage, misphase, spread of voltage are protected; Well heater short-circuit protection; Earth leakage protection; Humidifier excessive low water level protection; Overheat of compressor, overload, overvoltage, under-voltage protection; Operating room's temperature overtemperature prote.
Exchanges data and process is carried out by Ethernet TCP/IP communications protocol between industrial computer and PLC.
Touch screen of industrial personal computer is used for preset value input and the display of experiment flow, the processing mode of experimental data can pre-set, and the output of experimental data comprises: raw data list, data processed result value, be integrated into integrated flow value, Parameters variation curve and historical record with the difference of raw data, two the overproof warnings of sensing data, instantaneous deliveries.
Touch screen of industrial personal computer shows: in all devices state, temperature, humidity, return air amount, fresh air proportion, resh air requirement, total blast volume, pressure, multifunctional environment simulation cabin, after concentration, purification, in concentration, 4 cabins, tunnel, concentration, 4 tunnels purify rear concentration, 4 road gaseous target gas flows, the liquid target gas flow in 4 roads, object gas total amount, liquid gas accumulation and start-up time.
The parameter that industrial computer can be arranged has: concentration, fluid flow, timer time, liquid threshold values table, feedforward function, minimum transition flow, feed forward error correction and 4 road liquid flowmeter PID coefficient in return air amount, return air ratio, resh air requirement, sample frequency, multifunctional environment simulation cabin.
Industrial computer also has following button: static filling starts, startups of dynamically annotating, purification plant startup, purification plant stopping, emergent stopping, object gas removing, feed forward error correction, background purify and warning reset button.Warning reset button on industrial computer comprises the warning of concentration in cabin, fluid flow, gas flow, temperature, humidity, pressure, excess, data reliability and total amount of liquid and removes knob.
Industrial computer can carry out following data storing: concentration settings, timer time, fluid accumulation amount, start-up time and total blast volume in return air amount, return air ratio, resh air requirement, 4 road gaseous target gas flows, the liquid target gas flow in 4 roads, sample frequency settings, return air amount settings, return air ratio settings, resh air requirement settings, 4 road gaseous target gas flow settings, the liquid target gas flow settings in 4 roads, fluid flow settings, cabin.Industrial computer can show following real-time curve: concentration real-time curve, temperature real-time curve and humidity real-time curve in pressure real-time curve, the rear concentration real-time curve of purification, gas-monitoring total amount real-time curve, cabin.
The PLC control system of industrial computer and PLC composition is coordinated by control program and equipment and realizes each road concentration and regulate match control with flow PID, realize the accuracy requirement that respective sensor mates, each transportation work style amount and rotating speed PID regulable control quick and stable, multifunctional environment simulation cabin and to press and air draft PID regulates and controls quick and stable and newly wind and air draft and synchronously keep cabin to flatten surely.
Multifunctional environment simulation cabin has independently blows, freezes, heats and humidification system, and air channel forced circulation is blown.Multifunctional environment simulation cabin adopts the technology such as all steel inwall, temperature control, online generation gas-monitoring, monitoring in real time, think after Temperature and Humidity Control in cabin, impermeability, background concentration, the recovery and self damping are tested that this cabin Temperature and Humidity Control is accurate, impermeability is good, bulkhead adsorbability is little, Baseline monitoring gas concentration is low, self damping rate is low, can real simulation indoor environment, meets and detects and scientific research needs; Testing laboratory's air leakage flow rate is less than 0.05m
3/ h.
The air circulation in multifunctional environment simulation cabin arranges in multifunctional environment simulation cabin after humiture mainly through control panel, and via controller opens recirculating air stop valve, ON cycle wind frequency conversion fan, electric heater and wet-membrane humidifier.The inner mounting heater in air channel on rear side of multifunctional environment simulation cabin, humidification evaporator air suck below air channel on rear side of multifunctional environment simulation cabin.
The flabellum side shaft butt-end packing of circulating fan adopts inlet seal bearing, recirculating air frequency conversion fan produces malleation after opening, air is made to enter cabin body inner loop, form through surface cooler, frequency conversion fan, flowmeter, electric heater, wet-membrane humidifier the air of cleaning that humiture is suitable for successively and enter multifunctional environment simulation cabin again from return air inlet i.e. 6 diffusing holes at top, multifunctional environment simulation cabin, before entering multifunctional environment simulation cabin, also have Multifunctional air filtering device.Recirculating air inside pipe wall material adopts high-quality SUS304 stainless steel, the thickness 30.0mm of heat-insulation layer.Circulation airduct corrosion resistant plate adopts TIG welding, effectively prevents from, from seam, the air exchange with outside occurs.
Simultaneously top, multifunctional environment simulation cabin can also increase a mixing blower fan and makes gas form irregular eddy flow, accelerate gas mixing, make Nei Buliu dead angle, multifunctional environment simulation cabin, reach the temperature of requirement of experiment and the Homogeneous phase mixing degree of concentration through circulation for several times.The motor part of mixing blower fan is mounted in multifunctional environment simulation portion out of my cabin, avoids Contamination measurement space.
The workflow of environmental capsule in the Static and dynamic course of work of synthesizing map 6 and 7, has the course of work and the state of following steps a to e, and wherein the difference of the dynamic and static state course of work is step b and c, the corresponding step b of quiescent operation process; The corresponding step c of dynamic duty process, other steps can be all identical in the dynamic and static state course of work, and carry out different adjustment according to actual experiment scene.
A, constant temperature and humidity process: closing device greatly behind the door, arranges humiture in cabin, start constant humidity constant humidity system.Constant temperature (such as+25 DEG C) constant humidity such as+55% can be carried out automatically according to setting value in multifunctional environment simulation cabin.Inner eycle can shorten the setup time in multifunctional environment simulation cabin.
B, static filling object gas process: high concentration object gas is passed into Thermal desorption and vaporizes by PLC reception cabin internal object gas sensor concentration control liquid flow controller, adds circulation airduct, enters cabin in after mixing with recirculating air.
C, dynamically filling object gas process: high concentration object gas is passed into Thermal desorption and vaporizes by PLC reception cabin internal object gas sensor concentration control liquid flow controller flow, adds circulation airduct.The high precision that conbined usage PLC control objectives gas flow controller carries out object gas controls.Object gas adds circulation airduct, enters cabin in after mixing with recirculating air and new wind.
D, sample phase: when in multifunctional environment simulation cabin, air meets test request, after humiture is stable, after target gas levels reaches setting value, PLC mixes by the incorporation time of setting, and after time of arrival, PLC carries out sampling prompting.And be saved in computer by the data of network to contaminant sensor.
E, blowdown stage: after test sample completes, in order to can test next time, internal case air is needed to carry out integral replacement.And carry out air displacement by setting fresh air proportion and opening new air-valve, newly wind blower fan, exhaust valve, exhaust fan.Blowing time with air ambient target gas levels in multifunctional environment simulation cabin close to background concentration or test demand test period and determine.
The equipment of closing environmental capsule is large behind the door, starts refrigeration unit, well heater and humidity control device.Constant temperature (such as+23 DEG C) can be carried out automatically according to setting value in multifunctional environment simulation cabin.Inner eycle can shorten the setup time in multifunctional environment simulation cabin.
The sample phase of test process: when in multifunctional environment simulation cabin, air meets test request, after humiture is stable, can put into through pretreated testing product.For avoiding additional pollution, opening time and personnel should be as far as possible short in the indoor residence time, and during setting-out, Inner eycle blower fan shuts down.
Air in multifunctional environment simulation cabin to specify that flow velocity circulates, simultaneously according to ventilation volume 2 ~ 50 times/hour, 1500m
3/ h demand, by frequency conversion fan, meets humiture and purity requirements before the new wind after process enters multifunctional environment simulation cabin.Can carry out air sampling after process of the test is stable, sampling period and number of times can be arranged by controller.
In the blowdown stage of test process: after test sample completes, in order to can test next time, internal case air is needed to carry out integral replacement.Opening device gate, and carry out air displacement by the Wind Volume ventilation exhaust fan of device bottom.Blowing time with air ambient target gas levels in multifunctional environment simulation cabin close to background concentration or test demand test period and determine.
The multifunctional environment simulation cabin that the present invention relates to, this environmental capsule comprises cabin body, is loaded on the PLC control system of the external wall in cabin, for the air circularly purifying subsystem of air circulation and purification in the body of cabin, the Temperature and Humidity Control subsystem regulated for aerial temperature and humidity in the body of cabin, for inputting the new wind input subsystem of new wind, target gas levels control subsystem and Stress control exhaust system in the body of cabin; Described PLC control system connects and the multiple functional subsystem of control signal, realizes the environmental simulation of different humiture and target gas levels in environmental capsule.Employing of the present invention external circulation airduct has different purification plant interfaces be used for tested purification plant is installed, make its both demand of tested clarifier dynamic test on applicable simulation loop airduct, also can simulate the environment of static different target gas concentration.
Volume involved in the present invention is 30m
3large-sized multifunction environmental capsule can in simulating chamber and closed environment, is a kind of detection and the important tool of purifying property of research department's inner air-cleaning product, is used for the different environment of simulation.Multifunctional environment simulation cabin inwall is all polishing stainless steel steel plate.This cabin Temperature and Humidity Control is accurate, impermeability good, the concentration of cabin body background object gas is low, not only can test and study the performance of air clearing product, but also can the object gas emission of test architecture finishing material and some household electrical appliances; And the multifunctional environment simulation cabin of similar submarine cabin can be set up in this multifunctional environment simulation cabin, can also simulate contaminated indoor environment, be a kind of important tool and experiment porch of detecting and studying air clearing product performance.
The present invention tests for using object with certain model air cleaning unit.And entrust third party authority testing agency to carry out leakproofness detection, the air leakage flow rate in third-party cabin air-leakage test report display multifunctional environment simulation cabin is less than 0.05m
3/ h.
The Detection results of third party authority testing agency to clarifier is entrusted to detect.Detection method detects according to the relevant criterion of GB/T18801-2008 " air purifier ".Wherein formaldehyde, the background concentration of benzene homologues is all lower than 10ug/m
3, whole duration of test equipment operational excellence, humiture, pressure, air circulation control accurately, and the situation exceeding preset range, does not appear in each control element no-float.Testing result display impermeability is good.Run duration regulator cubicle temperature is all the time lower than 50 degrees Celsius, and each device work does not reach overheating protection temperature, and illustrate that regulator cubicle internal placement is reasonable, heat radiation is good.When simulating power-off, cut off the water supply, temperature controller was when losing efficacy, equipment lack of water, overtemperature protection device normally start, and illustrate that erecting device is effective, the normal operation of guarantee equipment and safety.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a multifunctional environment simulation cabin, is characterized in that:
Comprise for the formation of autonomous closure space cabin body (10), be loaded on the PLC control system (20) of cabin body (10) outer wall and the air circularly purifying subsystem (60) for air circularly purifying in the body of cabin;
Described air circularly purifying subsystem (60), comprise be installed on the outside recirculating air pipeline (61) for recirculating air flowing of cabin body (10), be installed on cabin body (10) outer wall for providing the recirculating air blower fan (62) of recirculating air power and being arranged at the recirculating air return air inlet (65) for recirculating air being sent into cabin body (10) on cabin body (10);
Described recirculating air blower fan (62) one end is connected with recirculating air pipeline (61), and the other end is connected with the opening on cabin body (10) outer wall; The recirculating air flow that recirculating air blower fan (62) is extracted out in cabin body (10) is got back in cabin body (10) through recirculating air pipeline (61) from recirculating air return air inlet (65);
Nearly recirculating air blower fan (62) end of described recirculating air pipeline (61), comprises the first purification plant installing port (66) for installing the first purification plant (86).
2. multifunctional environment simulation cabin as claimed in claim 1, is characterized in that,
Comprise the new wind input subsystem (30) for inputting new wind in the body of cabin; Described new wind input subsystem (30), comprises the new wind blower fan (32) being arranged on the outside external fresh air pipeline in the cabin for new wind flow (33) of cabin body (10) and providing for new wind circulation power;
Described new wind input subsystem (30) is connected by the new wind input port (63) on described recirculating air pipeline (61) with described air circularly purifying subsystem (60);
When new wind blower fan (32) starts work, the new wind input port (63) of new wind on recirculating air pipeline (61) enters recirculating air pipeline (61).
3. multifunctional environment simulation cabin as claimed in claim 2, is characterized in that,
Described first purification plant installing port (66) is positioned at nearly recirculating air blower fan (62) end of recirculating air pipeline (61);
Described new wind input port (63) is positioned between the first purification plant installing port (66) and recirculating air return air inlet (65).
4. multifunctional environment simulation cabin as claimed in claim 3, is characterized in that,
Nearly recirculating air return air inlet (65) end of described recirculating air pipeline (61), comprises the second purification plant installing port (68) for installing the second purification plant (88);
Described new wind input port (63) is positioned between the second purification plant installing port (68) and the first purification plant installing port (66).
5. multifunctional environment simulation cabin as claimed in claim 4, is characterized in that,
Described recirculating air pipeline (61) has the gas filler (69) for monitored object gas being filled into recirculating air pipeline (61) between the second purification plant installing port (68) and recirculating air return air inlet (65).
6. multifunctional environment simulation cabin as claimed in claim 5, is characterized in that,
Comprise the target gas levels control subsystem (90) for multifunctional environment simulation cabin internal object gas concentration inspect and control;
Described target gas levels control subsystem (90), comprises target gas levels bulk concentration detecting sensor (95);
Described target gas levels bulk concentration detecting sensor (95) comprises concentration of formaldehyde detecting sensor, VOC concentration detection sensor, ozone concentration detecting sensor, ammonia density detecting sensor and hydrocarbon concentration detection sensor;
Described target gas levels bulk concentration detecting sensor (95) sends target gas levels data to PLC control system (20);
PLC control system (20) is according to target gas levels Data Control recirculating air blower fan (62) rotating speed, and the gas flow that gas filler (69) injects and controlled new wind ratio carry out common goal of regulation and control gas concentration and reach desired value.
7. multifunctional environment simulation cabin as claimed in claim 6, is characterized in that,
It is inner that described target gas levels bulk concentration detecting sensor (95) is installed on cabin body (10), the target gas levels that direct survey room body (10) is inner.
8. multifunctional environment simulation cabin as claimed in claim 6, is characterized in that,
It is outside that described object gas thief hatch (81) is installed on cabin body (10);
By the sampling apparatus of outside, by the gas in cabin body (10) through external sampling device described in sampling pipe suction, it is inner that the gas after detection returns to cabin body (10) through sampling muffler again;
Described sampling pipe and sampling muffler are for penetrating cabin body (10) outer wall; Any position in cabin body (10) can be expanded and extend to the part of described sampling pipe in cabin body (10).
9. multifunctional environment simulation cabin as claimed in claim 1, is characterized in that,
Comprise Temperature and Humidity Control subsystem (50), comprise the temperature sensor (51) measured for air themperature in cabin, the electric heater (52) of heating for air in cabin, for the refrigerator (53) of air cooling in cabin, the humidity sensor (54) measured for air humidity in cabin, the humidifier (55) regulated for air humidity in cabin and the humiture blower fan (56) for pumping temperature and humidity regulation air-flow;
In described Temperature and Humidity Control subsystem (50), it is inner that described temperature sensor (51) and described humidity sensor (54) are arranged on described cabin body (10); Described electric heater (52), refrigerator (53), humidifier (55), humiture blower fan (56) are arranged on the outside in described cabin body (10), do not take body inner space, cabin;
Described temperature sensor (51) and described humidity sensor (54) send temperature and humidity measurement data to PLC control system (20);
PLC control system (20), according to the humiture data received, controls described electric heater (52) or refrigerator (53) or humidifier (55) and heats cabin body (10) inside or freeze or humidification.
10. multifunctional environment simulation cabin as claimed in claim 1, is characterized in that,
Comprise the Stress control exhaust sub-system (70) for the protection of cabin body air pressure;
Described Stress control exhaust sub-system (70), comprise for the exhaust duct (73) to the external air draft in cabin, the exhaust fan (72) provided for air draft power, for pressure detection in the body of cabin pressure transducer (76) and be arranged on the pressure relief safety valve (78) at cabin body (10) top;
Described exhaust duct (73) is positioned at the outside of cabin body (10); Described exhaust duct (73) is connected with the exhaust outlet of cabin body (10) side-wall near-bottom face end;
It is inner that described pressure transducer (76) is arranged on cabin body; Described pressure transducer (76) sends pressure measurement data to PLC control system (20); PLC control system (20) controls exhaust fan (72) rotating speed according to the pressure measurement data received;
Described pressure relief safety valve (78) automatically carries out pressure detection and judges that pressure exceeds setting threshold value and then opens pressure relief safety valve (78);
Described cabin body (10) is for square, and cabin body is spliced by polyurethane plate, and cabin inwall employing material is the polishing stainless steel plate of 304; Described cabin body (10) comprises the hatch door (12) of DC36V except frost line is housed, between described hatch door (12) and described cabin body (10), adopt polytetrafluoroethylene gasket to seal; Described hatch door (12) is also provided with multi-layer vacuum view window (13).
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